I just love to follow a line - with my eyes, along a path, while writing, dancing.
In photography, it is accepted that the eye follows lines into a photograph, so you should aim to place your point of interest where the line ends.
I'm talking about just this, this week in Better Pics for Business. I looked through my images and found some of my faves that demonstrate it.
Take a look at some of your fave pics and see if they have leading lines. I bet some of them do. Whether it is virtual, with light or with colour.
The set of waves rolling in makes me want to look deeper along the coast.
The patterns in the sand draw the eye through from bottom to top.
The doors lead the eye in the room. The lines of the floor boards and rug lead them in further.
The hands lead the eye in to the focus of this image, the wine glasses.